Wall covering



FIG. 1 is a perspective view of the wall covering.

FIG. 2 is a front view of the wall covering.

FIG. 3 is a rear view of the wall covering.

FIG. 4 is a right lateral view of the wall covering.

FIG. 5 is a left lateral view of the wall covering.

FIG. 6 is a top view of the wall covering.

FIG. 7 is a bottom view of the wall covering; and,

FIG. 8 is an enlargement detail of FIG. 2. 

The ornamental design for a wall covering, as shown and described. 